Display screen or a portion thereof having an animated graphical user interface



FIG. 1 is a front view of a display screen or a portion thereof having an animated graphical user interface showing our new design;

FIG. 2 is a front view of the second image thereof;

FIG. 3 is a front view of the third image thereof; and,

FIG. 4 is a front view of the fourth image thereof.

The outer edge of the display screen is understood to be congruent with the outer edge of the graphical user interface. The appearance of the animated image sequentially transitions between the images shown in FIGS. 1-4. The process or period in which one image transitions to another image forms no part of the claimed design.

The broken lines illustrate graphical elements that form no part of the claimed design. 

CLAIM The ornamental design for a display screen or a portion thereof having an animated graphical user interface, as shown and described. 